<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title></title>
</head>

<body>
  <h2>Dialog 模块</h2>
  <button id="btn">显示对话框</button>
  <br><br>
  <button id="btnErr">显示错误对话框</button>
  <script src="index.js"></script>
</body>

</html>